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FER300SB/XAA Samsung Electric Oven Inaccurate Oven Temperature Reading

firefighterdc

Premium Member
Joined
Dec 13, 2016
Messages
2
Location
Texas
Model Number
FER300SB
Brand
Samsung
Age
6-10 years
Example: Turn on oven, set to 350 degrees. Oven digital screen gets to 350 and beeps, BUT temp is 275. About 3 minutes later temp gets up to 350. Sometimes it won't get to set temp, and if you bump it up, it goes way over temp. Circuit board new in June of 2016 because LCD screen going out. I took temp. sensor out and took ohm reading 1096 at room temp (in range according to Samsung tech pamphlet taped to stove back). Ohm reading on heat element was 16.7 (I don't know if this is within spec). Any suggestions would be great. Even if temp sensor is within ohm specs, can it still be defective? Thanks

Forgot to mention that I checked for error codes....screen showed "no epp"???? Don't know what that stands for.
 
Last edited:

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
139,476
Location
Vicksburg Junction, Arizona
Even if temp sensor is within ohm specs, can it still be defective?
Possibly yes, its rare but can happen. Normal ohms at room temperature is 1050 to 1100 ohms. So your in range at room temp. but yes as the temp. rises it can be off a bit.

Only two parts control the oven temperature, the Clock Oven Control Board, which you mentioned was already replaced, and the Oven Sensor.

Here's the Oven Sensor for your model you can order:
Temperature Sensor DG32-00002B


Here's the Clock Oven Control Board for your model:
Main Control Board DE92-03045B


Jake
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
139,476
Location
Vicksburg Junction, Arizona
I have no clue what NO EPP stands for, sorry.

Wild may know, I will ask him, hes more versed on Samsung than I am.:)

Jake
 

wildimaginations

Appliance Tech
Joined
Jun 13, 2011
Messages
632
Location
Danville, California
Not sure about NO EPP but it may be a special code used by Samsung tech support for informational purposes.

Check your oven calibration by referring to page 27 of the Owner's Manual and using a digital thermometer to test.
 
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